High severityNVD Advisory· Published Mar 22, 2023· Updated Feb 25, 2025
crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb
CVE-2023-28119
Description
The crewjam/saml go library contains a partial implementation of the SAML standard in golang. Prior to version 0.4.13, the package's use of flate.NewReader does not limit the size of the input. The user can pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process. This issue is patched in version 0.4.13.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/crewjam/samlGo | < 0.4.13 | 0.4.13 |
Affected products
6- osv-coords5 versionspkg:apk/chainguard/grafana-7pkg:apk/chainguard/grafana-7-dashboardspkg:apk/chainguard/grafana-7-homepagepkg:apk/chainguard/grafana-homepagepkg:golang/github.com/crewjam/saml
< 7.5.27-r0+ 4 more
- (no CPE)range: < 7.5.27-r0
- (no CPE)range: < 7.5.27-r0
- (no CPE)range: < 7.5.27-r0
- (no CPE)range: < 7.5.27-r0
- (no CPE)range: < 0.4.13
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-5mqj-xc49-246pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2023-28119ghsaADVISORY
- github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021ghsax_refsource_MISCWEB
- github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246pghsax_refsource_CONFIRMWEB
News mentions
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